(audience laughs) - good morning, meine damen and herren. i am professor henreich von kraussmeyer. but i want to get one thing straight right from the outset. there will be no nonsense among members in this class. you will see we got a very diverse (unintelligible). we have to speed up the education. oh, but when i call on you in this class, we make every second count. when i call on you, i want each one of you to stand up and tell us what the cutest thing what happened to you during your summer vacation. (audience laughs) - professor, this is a chemistry class. and i'd like to ask you a question. - do you believe it? that's what i like, a student with a little curiosity. - how do you define the reciprocal of the logarithm of the hydrogen ion concentration of a solution? - and you would like me to answer that. - [bob] yes. - ah, i've got an answer for you! you're expelled! get out, out, out, out! out, out, out! and now we get on with the experiment. you will see we got a mess of test tubes here. i will need a volunteer to help me with the experiment. - i'll help you, professor. - o